Safety and Tolerability Study of KNS-760704 in Amyotrophic Lateral Sclerosis (ALS) (CL201)
2021년 6월 16일 업데이트: Knopp Biosciences
A 2-Part, Randomized, Double-Blind, Safety and Tolerability Study Evaluating KNS-760704 in Patients With Amyotrophic Lateral Sclerosis (ALS)
This was a 2-part study of dexpramipexole in patients with ALS.
Part 1 was a randomized, placebo-controlled, multi-center study to evaluate the safety, tolerability, and clinical effects of oral administration of 3 dosage levels of dexpramipexole vs. placebo for 12 weeks.
Part 2 was a randomized, double-blind, 2-arm, parallel group, extension study evaluating the safety, tolerability, and clinical effects of oral administration of 2 dosage levels of dexpramipexole for up to 72 weeks.
연구 개요
상태
완전한
정황
상세 설명
This study was a two-part, multicenter, double-blind study in subjects with ALS to evaluate the safety and tolerability of dexpramipexole treatment, as well as the preliminary effects on measures of clinical function and mortality of dexpramipexole treatment.
In part 1, 102 subjects with ALS were randomized at 20 US sites to receive placebo, dexpramipexole at 50 mg/day; dexpramipexole at 150 mg/day; or dexpramipexole at 300 mg/day for 12 weeks. Participants who completed Part 1 were eligible to enroll into Part 2.
Part 2 was a randomized, double-blind, 2-arm, parallel-group, extension study evaluating the longer-term safety, tolerability, and clinical effects of oral administration of 2 dosage levels of dexpramipexole. In part 2, following a 4-week, placebo washout, continuing subjects received dexpramipexole at 50 mg/day or 300 mg/day as double-blind treatment for up to 72 additional weeks (Part 2 duration was up to a total of 76 weeks, including the 4 week placebo portion).
연구 유형
중재적
등록 (실제)
194
단계
- 2 단계
연락처 및 위치
이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.
연구 장소
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Arkansas
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Little Rock, Arkansas, 미국, 72205
- University of Arkansas for Medical Sciences
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California
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Los Angeles, California, 미국, 90095
- UCLA, Dept. of Neurology - Neuromuscular/ALS Research Center
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San Francisco, California, 미국, 94115
- The Forbes Norris MDA/ALS Research Center
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Colorado
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Aurora, Colorado, 미국, 80045
- University of Colorado Health Sciences Center
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Florida
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Miami, Florida, 미국, 33136
- University of Miami Miller School of Medicine
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Kansas
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Kansas City, Kansas, 미국, 66160
- University of Kansas Medical Center
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Maryland
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Baltimore, Maryland, 미국, 21228
- Johns Hopkins University School Of Medicine
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Massachusetts
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Boston, Massachusetts, 미국, 02129
- Massachusettes General Hospital
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Missouri
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Saint Louis, Missouri, 미국, 63110
- Washington University School of Medicine
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Nebraska
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Lincoln, Nebraska, 미국, 68506
- Bryan LGH Medical Center East
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New York
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New York, New York, 미국, 10032
- Columbia University, Lou Gehrig MDA/ALS Research Center
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Syracuse, New York, 미국, 13210
- SUNY Upstate Medical University
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Oregon
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Portland, Oregon, 미국, 97239
- Oregon Health Sciences University
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Pennsylvania
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Hershey, Pennsylvania, 미국, 17033
- Penn State Hershey Medical Center
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Philadelphia, Pennsylvania, 미국, 19102
- Drexel University College of Medicine
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Pittsburgh, Pennsylvania, 미국, 15213
- University of Pittsburgh School of Medicine
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Tennessee
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Nashville, Tennessee, 미국, 37232
- Vanderbilt University Medical Center
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Texas
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San Antonio, Texas, 미국, 78229
- University of Texas Health Sciences Center of San Antonio
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Utah
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Salt Lake City, Utah, 미국, 84132
- University of Utah
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Virginia
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Charlottesville, Virginia, 미국, 22908
- University of Virginia Health System
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Washington
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Seattle, Washington, 미국, 98195
- University of Washington
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참여기준
연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.
자격 기준
공부할 수 있는 나이
21년 (성인, 고령자)
건강한 자원 봉사자를 받아들입니다
아니
연구 대상 성별
모두
설명
Inclusion Criteria:
- Patients with diagnosis of familial or sporadic ALS, defined as meeting the possible, laboratory-supported probable, probable, or definite criteria for a diagnosis of ALS according to the World Federation of Neurology El Escorial criteria
- Patients with ALS symptom onset < 24 months from randomization
- Patients with upright vital capacity (VC) > 65% of predicted for age, height, and gender
Exclusion Criteria:
- Patients in whom causes of neuromuscular weakness other than ALS have not been excluded
- Patients without clinical evidence of upper motor neuron dysfunction
- Patients with clinically suspected ALS according to the World Federation of Neurology El Escorial criteria
- Patients with prior exposure to KNS-760704 or the R(+) enantiomer of pramipexole (i.e., R(+)-pramipexole)
- Patients taking other investigational agents (including lithium) within 30 days of randomization or during the study
공부 계획
이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 치료
- 할당: 무작위
- 중재 모델: 병렬 할당
- 마스킹: 네 배로
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
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위약 비교기: Part 1: Placebo or Dexpramipexole
During Part 1, subjects received twice daily doses of dexpramipexole (50 mg/day, 150 mg/day, or 300 mg/day) or matching placebo for approximately 12 weeks.
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Placebo: 2 tablets taken orally twice daily
Dexpramipexole: 2 x 12.5 mg tablets taken orally twice daily
다른 이름들:
Dexpramipexole: 2 x 37.5 mg tablets taken orally twice daily
다른 이름들:
Dexpramipexole: 2 x 75 mg tablets taken orally twice daily
다른 이름들:
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실험적: Part 2: Placebo washout
At the beginning of Part 2, subjects received twice daily doses of placebo for approximately 4 weeks.
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Placebo: 2 tablets taken orally twice daily
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실험적: Part 2: Dexpramipexole
Following the Part 2 placebo washout, subjects received dexpramipexole (50 mg/day or 300 mg/day), subjects received twice daily doses of placebo for up to 18 months.
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Dexpramipexole: 2 x 12.5 mg tablets taken orally twice daily
다른 이름들:
Dexpramipexole: 2 x 75 mg tablets taken orally twice daily
다른 이름들:
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Part 1: Number of Participants With Potentially Clinically Significant Hematology Results by Treatment Group
기간: 12 weeks
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Number of Participants with Potentially Clinically Significant Hematology Results by Treatment Group.
Percentages based on number of patients with at least one non-missing post-baseline value in each treatment group.
Patients are only counted once per criterion per laboratory test.
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12 weeks
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Part 1: Number of Participants With Potentially Clinically Significant Blood Chemistry Results by Treatment Group
기간: 12 weeks
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Number of Participants with Potentially Clinically Significant Blood Chemistry Results by Treatment Group.
Percentages based on number of patients with at least one non-missing post-baseline value in each treatment group.
Patients are only counted once per criterion per laboratory test.
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12 weeks
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Part 1: Number of Participants With Treatment Emergent Potentially Clinically Significant Electrocardiogram (ECG) Findings by Treatment Group
기간: 12 weeks
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Number of Participants with Treatment Emergent Potentially Clinically Significant Electrocardiogram (ECG) Findings by Treatment Group.
Percentages are based on the number of patients with at least one non-missing post-baseline value in each treatment group.
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12 weeks
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Part 1: Number of Participants With Potentially Clinically Significant Vital Sign Measurements by Treatment Group
기간: 12 weeks
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Number of Participants with Potentially Clinically Significant Vital Sign Measurements by Treatment Group.
Percentages are based on the number of patients with at least one non-missing post-baseline value in each treatment group.
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12 weeks
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Part 1: Slope of ALSFRS-R (ALS Functional Rating Scale With Respiratory Component) From Baseline to Week 12 by Treatment Group
기간: 12 weeks
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The ALSFRS-R (ALS functional rating scale with respiratory component) is a validated scale which measures 4 functional domains, comprising respiratory function, bulbar function, gross motor skills, and fine motor skills.
There are a total of 12 questions, each scored from 0 to 4 for a total possible score of 48, with higher scores representing better function.
Slope is calculated using a linear mixed effects model with x-axis time in months and y-axis ALSFRS-R score.
Units for slope are change per month in units on the ALSFRS-R scale.
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12 weeks
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Part 1: Slope of Upright Vital Capacity From Baseline to Week 12 by Treatment Group
기간: 12 weeks
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Slope of change in Upright Vital Capacity (percent predicted upright vital capacity) from Baseline to Week 12.
A negative change/slope indicates clinical worsening.
Slope is calculated using a linear mixed effects model with x-axis time in months and y-axis as percent predicted upright vital capacity.
Units for slope are change per month in percent predicted upright vital capacity.
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12 weeks
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Part 2 Placebo Washout: Number of Participants With Potentially Clinically Significant Hematology
기간: 4 weeks
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Number of Participants with Potentially Clinically Significant Hematology Results by Treatment Group.
Percentages based on number of patients with at least one non-missing post-baseline value in each treatment group.
Patients are only counted once per criterion per laboratory test.
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4 weeks
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Part 2 Placebo Washout: Number of Participants With Potentially Clinically Significant Blood Chemistry Results
기간: 4 weeks
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Number of Participants with Potentially Clinically Significant Blood Chemistry Results by Treatment Group.
Percentages based on number of patients with at least one non-missing post-baseline value in each treatment group.
Patients are only counted once per criterion per laboratory test.
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4 weeks
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Part 2 Placebo Washout: Number of Participants With Treatment Emergent Potentially Clinically Significant Electrocardiogram (ECG) Findings
기간: 4 weeks
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Number of Participants with Treatment Emergent Potentially Clinically Significant Electrocardiogram (ECG) Findings by Treatment Group.
Percentages are based on the number of patients with at least one non-missing post-baseline value in each treatment group.
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4 weeks
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Part 2 Placebo Washout: Number of Participants With Potentially Clinically Significant Vital Sign Measurements
기간: 4 weeks
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Number of Participants with Potentially Clinically Significant Vital Sign Measurements by Treatment Group.
Percentages are based on the number of patients with at least one non-missing post-baseline value in each treatment group.
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4 weeks
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Part 2 Placebo Washout: Absolute Change in ALSFRS-R Total Score
기간: 4 weeks
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The ALSFRS-R (ALS functional rating scale with respiratory component) is a validated scale which measures 4 functional domains, comprising respiratory function, bulbar function, gross motor skills, and fine motor skills. There are a total of 12 questions, each scored from 0 to 4 for a total possible score of 48, with higher scores representing better function. Units are points on the ALSFRS-R score as an absolute change from the baseline of the placebo washout to week 4 of the placebo washout. |
4 weeks
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Part 2 Placebo Washout: Absolute Change in Upright Vital Capacity (Percent Predicted) From Baseline to End of Placebo Washout (Week 4)
기간: 4 weeks
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Absolute change in Upright Vital Capacity From Baseline to Week 4. Units are percent of predicted Upright Vital Capacity.
A negative change indicates clinical worsening.
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4 weeks
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Part 2 Double-Blind Treatment: Number of Participants With Potentially Clinically Significant Hematology Results by Treatment Group
기간: up to 76 weeks
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Number of Participants with Potentially Clinically Significant Hematology Results by Treatment Group.
Percentages based on number of patients with at least one non-missing post-baseline value in each treatment group.
Patients are only counted once per criterion per parameter.
|
up to 76 weeks
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Part 2 Double-Blind Treatment: Number of Participants With Potentially Clinically Significant Blood Chemistry Results by Treatment Group
기간: up to 76 weeks
|
Number of Participants with Potentially Clinically Significant Blood Chemistry Results by Treatment Group.
Percentages based on number of patients with at least one non-missing post-baseline value in each treatment group.
Patients are only counted once per criterion per parameter.
|
up to 76 weeks
|
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Part 2 Double-Blind Treatment: Number of Participants With Treatment Emergent Potentially Clinically Significant Electrocardiogram (ECG) Findings by Treatment Group
기간: up to 76 weeks
|
Number of Participants with Treatment Emergent Potentially Clinically Significant Electrocardiogram (ECG) Findings by Treatment Group.
Percentages based on number of patients with at least one non-missing post-baseline value in each treatment group.
Patients are only counted once per criterion per parameter.
|
up to 76 weeks
|
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Part 2 Double-Blind Treatment: Number of Participants With Potentially Clinically Significant Vital Sign Measurements by Treatment Group
기간: up to 76 weeks
|
Number of Participants with Potentially Clinically Significant Vital Sign Measurements by Treatment Group.
Percentages based on number of patients with at least one non-missing post-baseline value in each treatment group.
Patients are only counted once per criterion per parameter.
|
up to 76 weeks
|
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Part 2 Double-Blind Treatment: Slope of the ALSFRS-R (ALS Functional Rating Scale With Respiratory Component) From Baseline to Week 28 by Treatment Group
기간: 28 weeks
|
The ALSFRS-R (ALS functional rating scale with respiratory component) is a validated scale which measures 4 functional domains, comprising respiratory function, bulbar function, gross motor skills, and fine motor skills.
There are a total of 12 questions, each scored from 0 to 4 for a total possible score of 48, with higher scores representing better function.
Slope is calculated using a linear mixed effects model with x-axis time in months and y-axis ALSFRS-R score.
Units for slope are change per month n units on the ALSFRS-R scale.
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28 weeks
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Part 2 Double-Blind Treatment: Slope of Percent Predicted Upright Vital Capacity From Baseline by Treatment Group
기간: Baseline of randomized phase of Part 2 to week 28 of randomized phase of Part 2
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Slope of Upright Vital Capacity (percent predicted) through Week 28.
A negative change indicates clinical worsening.
Slope is calculated using a linear mixed effects model with x-axis time in months and y-axis percent predicted upright vital capacity.
Units for slope are change per month in percent predicted upright vital capacity.
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Baseline of randomized phase of Part 2 to week 28 of randomized phase of Part 2
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공동 작업자 및 조사자
여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.
간행물 및 유용한 링크
연구에 대한 정보 입력을 담당하는 사람이 자발적으로 이러한 간행물을 제공합니다. 이것은 연구와 관련된 모든 것에 관한 것일 수 있습니다.
연구 기록 날짜
이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.
연구 주요 날짜
연구 시작 (실제)
2008년 4월 9일
기본 완료 (실제)
2009년 7월 31일
연구 완료 (실제)
2009년 9월 4일
연구 등록 날짜
최초 제출
2008년 3월 26일
QC 기준을 충족하는 최초 제출
2008년 3월 28일
처음 게시됨 (추정)
2008년 3월 31일
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
2021년 7월 8일
QC 기준을 충족하는 마지막 업데이트 제출
2021년 6월 16일
마지막으로 확인됨
2021년 3월 1일
추가 정보
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .